Turnbuckle



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TURNBUCKLE Filed om. :51, levs Patented Apr. 20, 1926.

PATENT OFFICE.

ARTHUR FRANKE, OF CARY STATION, ILLINOIS.

TURNB'UCKLE.

Application filed October 31, 1923. lSerial No. 671,834.

To all whom t may concern:

Be it known that I, ARTHUR FRANKE, a citizen of the United States, and aresident of the town of Cary Station, in the county of McHenry and Stateof Illinois, have invented certain new and useful Improvements in aTurnbuckle; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, and to the numerals of reference marked thereon.which form a part of this specification.

This invention relatesto turnbuckles for taking up slack in wire ropesand the like, and has special reference to the requirements of airplanewiring wherein lightness and simplicity are paramount requirements.

It is an important object of this invention to provide a turnbuclilewherein the barrel can be easily and cheaply manufactured from sheetmetal without the necessity of performing internal threading operationsthereon.

It is another important object of this invention to provide a turnbucllein which standard clevis and eye rod ends may be used with standard nutssecured in the barrel to furnish the adjustment.

Other and further important objects of this invention will be apparentfrom the disclosures in the drawings and accompanying specification.

This invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

On the drawings:

Figure 1 is a plan view of a single end turnbuckle embodying` thefeatures of this invention.

Figure 2 is a side elevation thereof,

Figure 3 is a plan view of a double turn buckle.

Figure 4 is a section on the line 4 4 of Figure 3.

Figure 5 is a section on the line 5-5 of Figure 2.

As shown on the drawings:

The device of this invention comprises either an eye 6 or clevis 7, rodend threaded at 8 for standard nuts 9. As shown in Figure l, a wire rope10 is passed through the eye rod end. The barrel 11 of the turnbuckle inthe single turnbuckle is formed in a U- shape and apertured at thebottom 12 of the U for the threaded portion rod end. The sides 13 of theU adjacent the bottom of the bend are spaced to closely engage oppositefaces of one of the nuts 9 and beyond the nut are brought closertogether to touch the rod 8 beyond the nut to prevent undue wabble. Thetips 14 of the legs of the barrel are apertured as at 15 to take a bolt16 which engages with a suitable anchor 17.

In a double turnbuckle, one rod end is threaded right hand and one lefthand and the barrel 18 is in essence two single barrels formed from onestrip of sheet metal bent to the required form and the ends Welded orotherwise secured as shown at 19 in Figure 3.

With the single turnbuckle the bolt 16 must be removed and the barrel 11rotated to screw the inner nut either way on the rod 8. FVith the doubleturnbuckle, loosening thc outer nuts will permit rotation of the barrelto 4tighten or loosen the turnbuckle without disturbing the fittingsattached to the rod ends.

I am aware that many changes may be made, and numerous details ofconstruction may be varied through a Wide range without departing fromthe principles of this invention, and I therefore do not purpose'limiting the patent granted hereon, otherwise than necessitated by theprior art.

I claim as my invention:

A turnbuclle comprising a metal strip bent into U-shape with anenlargedI section at the bend and apertured centrally of the U bend, athreaded rod extending through said aperture, and nuts on said rodinside and outside said metal strip, the nut inside being engaged by theenlarged section at the bend and the threaded rod being contacted andguided by the projecting ends of the metal strip.

In testimony whereof I have hereunto subscribed my name.

ARTHUR FRANKE.

